相似系数法在川贝母群落分类中的应用研究

目的　探讨数值分类方法应用于川贝母分布群落类型的划分。方法　以群落相似系数百分率划分川贝母分布的群落类型。结论　应用相似系数法可将川贝母野生抚育的适宜群落划定为窄叶鲜卑花灌丛、理塘杜鹃灌丛、硬叶柳灌丛、金露梅 +绣线菊灌丛、香柏灌丛、珠芽蓼 +圆穗蓼草甸等 6种类型     

安徽省部分中学生对严重急性呼吸综合征知识了解的调查

目的 :了解含山县部分在校中学生对严重急性呼吸综合征 (SARS)的了解状况 ,为今后开展SARS的防治提供资料 ,提高中学生对SARS的认识水平。方法 :采用分层整群抽样的方法 ,对5所中学的10个班级的300名同学通过自设问卷进行调查。结果 :综合认识率3.7 % ,但隔离认识率98.0 % ,支持率97.7 % ,87 9 %的学生认为它和乙肝一样是一种传染病 ,75 8 %的学生认同口罩的层数应为12～24层 ,93 0 %的人知道SARS的潜伏期是4～5天 ,对于SARS ,93 3 %的学生保持警惕 ,坚持预防为主 ,89 6 %的学生相信科学最终可以战胜。SARS的早期症状、传播途径、SARS前后的卫生习惯和现阶段如何预防SARS的调查评分显示 ,城市评分高于农村。结论 :对SARS的综合认识率较低且存在城市和农村差异 ,宣传教育工作有待加强 ,应科学的看待和预防SARS。     

Hemorrhagic risk factors during beta-lactam antibiotics therapy

Any type hemorrhagic manifestation may occur 12 hours to 5 weeks after the administration of beta-lactam antibiotics. The mechanisms of blood losses proved to be by: 1) immunologic thrombocytopenia (penicillins); 2) alteration of platelet functions (semisynthetic penicillins); 3) hypoprothrombinemia (cephalosporins). The risk factors for the occurrence of hemorrhage under beta-lactam antibiotics therapy are: concomitant administration of cytostatics for a neoplastic malignancy; b) acute or chronic renal failure; c) concomitant treatment for duodenal and gastric ulcer; d) malnutrition; e) dosage and duration of antibiotic administration. The frequency of bleeding under beta-lactams is not determined as yet. A severe case diagnosed at the IIIrd Medical Clinic of Iasi presenting spontaneous daily nasal bleedings that occurred 24 hours after the initiation of the treatment with cephalosporins (Kefurox) is presented. In this patient the risk factor was chronic renal failure.     

中医色诊研究及光子学技术在色诊中的应用

简要地阐述了中医色及色诊的基本概念及其临床意义,以及目前中医色诊的主要研究方向及其进展,探讨了光子学技术在中医色诊中的应用及其主要研究内容,以期光子学技术促使色诊技术向微量化、自动化和快速化的方向发展,提供中医诊断的新手段、新方法和新仪器,为中医药学的现代化探求新的方向与前景.     

安非他酮与西酞普兰治疗老年期抑郁症对照研究

目的观察安非他酮缓释片治疗老年期抑郁症的临床疗效和安全性。方法进行6周的开放式前瞻性随机对照研究,将56名老年期障碍的患者随机分为两组,安非他酮组(26例)和西酞普兰组(30例),疗程6周,采用汉密尔顿抑郁量表(HAMD)和汉密尔顿焦虑量表(HAMA)及副反应量表(TESS)在治疗前和治疗后1、2、4、6周末评定药物疗效和副反应。结果采用t检验,两组HAMD和HAMA总分及各因子分从疗后2~6周均较治疗前显著降低(t=20.45,13.50,6.7,6.06;P均0.01),两组间无显著性差异;治疗结束时TESS评分安非他酮组与西酞普兰组无显著性差异(t=0.23,P0.05)。结论安非他酮缓释片治疗老年期抑郁症的疗效及药物不良反应均与西酞普兰相当,可作为治疗老年期抑郁症的一线药物使用。     

Consumption and Sources of Dietary Salt in Family Members in Beijing

In China, few people are aware of the amount and source of their salt intake. We conducted a survey to investigate the consumption and sources of dietary salt using the “one-week salt estimation method” by weighing cooking salt and major salt-containing food, and estimating salt intake during dining out based on established evidence. Nine hundred and three families (1981 adults and 971 children) with students in eight primary or junior high schools in urban and suburban Beijing were recruited. On average, the daily dietary salt intake of family members in Beijing was 11.0 (standard deviation: 6.2) g for children and adolescents (under 18 years old), 15.2 (9.1) g for adults (18 to 59 years old), and 10.2 (4.8) g for senior citizens (60 years old and over), respectively. Overall, 60.5% of dietary salt was consumed at home, and 39.5% consumed outside the home. Approximately 90% of the salt intake came from cooking (household cooking and cafeteria or restaurant cooking), while less than 10% came from processed food. In conclusion, the dietary salt intake in Beijing families far surpassed the recommended amounts by World Health Organization, with both household cooking and dining-out as main sources of salt consumption. More targeted interventions, especially education about major sources of salt and corresponding methods for salt reduction should be taken to reduce the risks associated with a high salt diet.     

慢性胰腺炎合并急性梗阻性化脓性胰管炎致假性囊肿感染1例

急性梗阻性化脓性胰管炎在临床上十分罕见,本文报道1例慢性胰腺炎合并急性梗阻性化脓性胰管炎,并在此基础上继发假性囊肿感染的病例,分析了假性囊肿感染的原因,并探讨了内镜治疗及抗感染治疗的策略与挑战。     

Impact of COVID-19 on Pregnancy

Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is an emerging disease. There has been a rapid increase in cases and deaths since it was identified in Wuhan, China, in early December 2019, with over 4,000,000 cases of COVID-19 including at least 250,000 deaths worldwide as of May 2020. However, limited data about the clinical characteristics of pregnant women with COVID-19 have been reported. Given the maternal physiologic and immune function changes during pregnancy, pregnant women may be at a higher risk of being infected with SARS-CoV-2 and developing more complicated clinical events. Information on severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) may provide insights into the effects of COVID-19''s during pregnancy. Even though SARS and MERS have been associated with miscarriage, intrauterine death, fetal growth restriction and high case fatality rates, the clinical course of COVID-19 pneumonia in pregnant women has been reported to be similar to that in non-pregnant women. In addition, pregnant women do not appear to be at a higher risk of catching COVID-19 or suffering from more severe disease than other adults of similar age.Moreover, there is currently no evidence that the virus can be transmitted to the fetus during pregnancy or during childbirth. Babies and young children are also known to only experience mild forms of COVID-19. The aims of this systematic review were to summarize the possible symptoms, treatments, and pregnancy outcomes of women infected with COVID-19 during pregnancy.